Accelerator attachment



. l March 927 P. 1.. HARTZ ACCELEI IATOR ATTACHMENT Filed Nov. 15, i925 2 Sheets-Sheet 1 amnion I? L. Hai-Zz,

March 15, 1927.

P. L. HARTZ ACCELERATOR ATTACHMENT- Filed Nov. 13, 1925 2 Sheets-Sheet 2 Patented Mair. 15, 192.7.

UNITED STATES PHILIP LEO HARIZ, F AKRON, OHIO.

ACCELERATOR ATTACHMENT.

Application filed November 13, 1926-. Serial Ni'o. 148,206;

This invention relates to improvements in accelerator attachments.

The primary object of the invention is to provide means which will permit the fuel control valve of an internal combustion engine of a motor vehicle tobe operated either by the drivers hand or foot.

A further object of the invention. is to provide means of the above mentioned type which is especially adapted for use 011 Ford cars equipped with a fuel economizer of the specific type termed the Holley hot plate vaporizer.

A further object of the invention is to provide an accelerator attachment which re quires no support from the engine other than that derived through its connection with the fuel control valve.

A still further object of the invention is to provide an improved form of pedal structure for accelerator attachments.

Other objects and advantages of the invention will be apparent during the course of the following description:

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a par tial front elevational view of a vehicle and its engine which are equipped with the improved accelerator attachment embodying this invention,

Figure 2 is a top plan view of a portion of' the structure shown in Figure 1 and illustrating the accelerator attachment in its entirety,

Figure 3 is a detail plan view, partly broken away, of the accelerator attachment shownin Figures 1 and 2,

Figure 4 isa sectional view taken on line 4- 1 of Figure 3, d

Figure 5 is a sectional view taken on line 5-5 of Figure 3,

Figure 6 is a plan view ofa modified form of accelerator attachment embodying this invention,

Figure 7 is a sectional view taken on line 77 of Figure 6,

Figure 8 is a sectional view taken on line 88 of Figure 6, and

Figure 9 is a detail elevational view of the pedal structure embodying this invention.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of this invention, the numeral 10 designates in its entirety the portions of the vehicle body illustrated in Figs. 1 and 2. Associated with this body is an internal com bustion. engine designated in its entirety by the reference character 1]. l

The only portion of the engine 11 of'pars ticular interest with respect to. this accelerator attachment isthe fuel control valve. arm 12, which forms a art of the fuel economizer designated genera ly by the character13and which is of the specific type termed theHo1,- ley hot plate vaporizer. It might be noted at this time that the only structural feature of this fuel economizer which has any hearing upon the accelerator'attachment embodying' this invention is the direction. of move-.

ment of the arm 12 with respect to the eugine 11. This movement is away from: the engine to open the valve controlled by the same. My experience with engine fuel con-'- trol valves shows that the movement of the" valve arm necessary to open the valve is in a direction toward the engine.

Arranged? on: the opposite side of the en.- gine 11 is a rod 1% which is commonly termed.

the hand throttle rod. Properly connected to this rod is a crank arm 15- havingan operative movement in the direction of the engine 11.

Connected to the fuel valve arm 12; at one end and to the crank arm 15 at its. other end is a train of mechanical elements including a rod 16 pivoted at its bent end 17 to the crank arm 15an'd having its remaining end permanently afiixed to a section of tubing 18; Slidably associated with the remaining end of the tubing 18 and its bore is a second. rod 19 having an angularly arranged end portion 20 pivotally connected to the valve control arm 12;

It will be noted by inspecting Figure 3 that the tube 18 is longitudinally slotted at 21 for slidably receiving the threaded pin 22 connected to the inner end of the rod 19 and projecting laterally with respect to. the latter.

Connected to the tube 18, as best. illustrated in Figure 5, is a two-part'clamp 23 which has a portion encircling thetube and a second portion '2. which functions as a clamp in a manner to bedescribed' at a laterpoint.

Figures 1 and 2 show a pedal structurewhich is intended to be mounted upon the floor board of the vehicle body 10 and in eludes a base portion 24 having at one end a pair of upstanding apertured ears 25 and formed at its opposite end with a pair of spaced openings 26 and 27. Pivoted to the aforesaid ears 25 as by the pin 28 are the pair of apertured cars 29 formed on the inner end of the movable or foot engaging portion 30 of the pedal structure. Depending from the free end of the portion 30 is an areuate leg 31 extending downwardly through the aperture 27 in the base 24 and terminating in a laterally extending foot 32 positioned below the base 24. A spring element 33 is associated with the pivot for the movable portion 30 and functions to urge this portion away from its base 24. The foot 32 of the leg 31 will limit this movement of the portion 30.

Connected to the outer end of the pedal base 24 and entering its aperture 26 is one end of a flexible tube or conduit 34 which has its remaining end portion secured to the clamp 23 by the clamping portion 23.

Extending through the bore of the tube or conduit 34 is a strand of wire. or the like, 35 which is suitably connected to the foot 32 of the pedal structure at one end and adjustably connected to the threaded pin 22, of the rod 19 at its other end portion by means of the block 36 which is threaded on one end ofthe pin 22, as best illustrated in Figs. 3 and 4.

Interposed between the clamp 23 and the block 36 is a spring 37 which encircles the tube 18. It will be noted that this spring functions to force the pin 22 away from the clamp 23 and in abutting relation with the ends 21 of the slots 21.

The operation of the accelerator attachment illustrated in Figures 1 to 5 inclusive may be described as follows:

Bearing in mind the fact that the fuel control valve, associated with the fuel economizer 13, must be moved away from the engine 11, as by a thrust in a direction toward the arm 12, to open the fuel control valve, the crank arm 15 must be moved toward the engine 11 to open the fuel valve. This movement of the crank arm 15 will be transmitted to the control arm 12 by the rod 16, the tube 18 and the rod 19 which is held immovable with respect to the tube 18 by the pin 22 abutting the ends 21 of the tube slots 21.

It will now be recognized that to operate the valve control arm 12 by the pedal struc ture, a thrust in the direction of the arm 12 also must be produced. This is accomplished by depressing the movable portion 30 of the pedal structure. This movement of the portion 30 will pull up the strand of wire 35 for causing the same to travel through the tube or conduit 34. The movement of the wire 35 will cause the rod 19 to be extended a greater distance out of the end of the tube 18, that is, the pin 22 will be moved through the slots 21 in the tube 18 and the rod 19 will be shifted longitudinally with respect to the tube 18. This movement of the rod 19 will operate the valve arm 12 to open the valve and will be entirely independent of the rod 16 connected to the crank arm 15.

l i hen pressure is removed from the movable pedal portion 30 the spring 3? will function to return the rod 19 to its normal position with respect to the tube 18 and the fuel valve operated by the arm 12 will be closed.

Referring particularly to Figs. 6, 7 and 8, there is shown a modified form of accelerator attachment which structurally differs from the form described heretofore but which functions in the same manner.

The reference character 15 in Figure 6 refers to the crank arm shown in Figs. 1 and 2 as being attached to the control rod 14. Pivoted to this element 15 is a rod 38 having permanently secured to its outer end a plate 39 formed with a square opening 40, see Fi g. 8, and a round opening 41. Intermediate the ends of the rod 38 is a second plate 42, see Fig. 7, which has formed therein a square opening 43.

Attached to the valve control arm 12 is the angular end 44 of the rod 45. The remaining end of this rod is slidabl positioned in the square openings 40 and 4. formed in the plates 39 and 42 respectively. The end por tion of the rod 45 more closely associated with the plate 42 has formed therein a pair of spaced internally threaded holes 46. The extreme end of this rod is provided with a cotter pin 47 which selectively prevents withdrawal of the rod from the square openings 40 and 43.

Selectively threaded into one of the holes 46 is the threaded stem of the block 48. Secured to this block, by the screw 49 is one end portion of the strand of wire 50. This strand extends through the flexible cable or conduit 51 which is attached at 52 to the plate 39, as by being positioned within the aperture 41 of the plate.

Associated with the remaining ends of the wire 50 and flexible conduit or cable 51 is the pedal structure shown in detail in Figure 9. In view of this fact, it is believed unnecessary to again refer to the detailed features of construction of the same at this time.

It now will be apparent that movement of the crank arm 15 will cause movement of the valve control arm 12 in the same manner as described in connection with the structure shown in Figs. 1 to 5V inclusive. It may be noted, however, that the plate 42 now abuts against the projection or block 48 carried by the rod 45. Thi structure takes the place of the pin 22 and slots 21 in the first described form.

Depression of the movable portion 30 of the pedal will cause the strand of wire 50 to be moved through the conduit 5-1 for exerting a pullingforccupon the rod 45. This will. shift the rod with respect to the guiding plates 39? and 42'. To return the rod a5, and thevalve control arm 12, to their normal positions, the spring 52 is provided and encir- 0165 the portion of the rod a5 positioned between the plates 89 and 42.

It is to be understood that the forms of this invention herewith shown and described are to be taken as preferred examples of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined claims. 7

Having thus described the invention, 1 claim:

1. In a motor vehicle, a fuel control valve located on one side of the vehicle engine and having an operating arm movable away from the engine to open the valve, a hand operating rod onthe opposite side of the engine and having a crank arm movable from its normal position toward the engine, a series of mechanical elements connecting the operating arm to the crank arm for causing the movement of the crank arm to push through the entire series of mechanical elements to open the valve, a pedal, and means connecting the pedal to a portion of said series of elements and operative to cause the depression of said pedal to produce a push upon said portion of the series of elements to open the valve.

In a device of the type described, a slidable 'alve operating rod, guiding means for said rod, a pedal structure including an immovable base, a movable portion pivoted to the base and formed With a leg slidably projecting through the base, and a foot on the leg below the base, a tube connected to the guiding means at one end and to the base of the pedal structure at its other end, and a wire extending through the tube connected at one end to the slidable rod, and at its other end to the said foot, whereby operation of the movable portion of the pedal structure will cause the rod to slide.

3. In a device of the type described, a slidable valve operating rod, guiding means for said rod, a pedal structure including an immovable base, a movable portion pivoted to the base and formed witha leg slidably projecting through the base, and a foot on the leg below the base, a tube connected to the guiding means at one end and to the base of the pedal structure at its other end, a wire extending through the tube connected at one end to the slidable rod, and at its other end to the said foot, whereby op eration of the movable portion of the pedal structure Will cause the rod to slide, and a spring for returning the rod to its normal position.

4-. In a device of the type described, a pedal structure including an immovable base, a movable portion pivoted to the base pivoted to the crank arm, a second element.

pivoted to the operating arm, said elements having their free end portions only slidably connected to each other, a pedal, a flexible tube anchored at one end, means for connecting the other end of the tube to the first of said elements Within the limits of its aforesaid slidably connected free end portion, a flexible member connected, at one end to the pedal and extending through the tube, a block detachably connected to the other end of the flexible member, and to the second element Within the limits of its aforesaid slidably connected free end portion, and a spring bearing at its ends against the block and the aforesaid means.

6. In a device of the type described, a hand operated crank arm, a fuel control valve having an operating arm, an element pivoted to the crank arm, a second element pivoted to the operating arm, said elements having their free end portions only slidably connected to each other, a pedal, a flexible tube anchored at one end, means for connecting the other end of the tube to the first of said elements Within the limits of its aforesaid slidably connected free end portion, a flexible member connected at one end to the pedal and extending through the tube, a block detachably connected to the other end of the flexible member, and to the second element Within the limits of its aforesaid slidably connected free end portion, a spring bearing at its ends against the block and the aforesaid means for yieldably retarding the extension of said elements, and means coacting with the block to limit the contraction of said elements With respect to each other.

7. In a device of the type described, a hand operated crank arm, a fuel control valve having an operating arm, an element pivoted to the crank arm, a second element pivoted to the operating arm, a tubular member receiving the free ends of the said elements and permanently fastened to one of the same, means for limiting the inward movement of the loose element With respect to the tubular member, a casing fastened to the tubular member, a flexible member extending through the casing and pivotally connected to the loose element, and means for moving the flexible member to shift the loose element.

8.111 a device of the type described, a hand operated crank arm, a fuel control valve having an operating arm, an element pivoted to the crank arm, a second element pivoted to the operating arm, a tubular member receiving the free ends of the said elements and permanently fastened to one of the same, means for limiting the inward movement of the loose element With respect to the tubular member, a casing, means for detachably and adjnstably connecting the casing to the tubular member, a flexible member extending through the casing, means for detachably and adjnstably connecting the flexible member to the loose element, and means for moving the flexible member to shift the loose element.

9. In a device of the type described, a hand operated crank arm, a fuel control valve having an operating arm, an element pivoted to the crank arm, a second element pivoted to the operating arm, a tubular member receiving the free ends of the said elements and permanently fastened to one of the same, means for limiting the inward movement of the loose element with respect to the tubular member, a casing, means for detachably and adjnstably connecting the casing to the tubular member, a flexible mentlber extending through the casing, means for detachably and adjustably connecting the flexible member to the loose element. a spring encircling the tubular member and bearing at its ends against the said detachable and adjustable connecting means for yieldably maintaining the loose element at its innermost position With respect to the tubular member, and means for moving the flexible member to shift the loose element.

In testimony whereof, I aflix my signature. in

PHILIP LEO HARTZ. 

